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  1. Philips - Hue Motion Sensor - White - Front_Zoom
    Your price for this item is $44.99
  2. Ring - Alarm Motion Detector (2nd Gen) (1-Pack) - White - Front_Zoom
    Your price for this item is $29.99
  3. GE - CYNC Smart Wire-Free Motion Sensor - White - Front_Zoom
    Your price for this item is $27.99
    Save $7
    The previous price was $34.99
  4. SimpliSafe - Glassbreak Sensor - White - Front_Zoom
    Your price for this item is $34.99
  5. eufy Security - Smart Home Security Alarm Motion Sensor Add-on - White - Front_Zoom
    Your price for this item is $29.99
  6. SimpliSafe - Motion Sensor - White - Front_Zoom
    Your price for this item is $29.99
  7. Philips - Hue Outdoor Motion Sensor - Black And White - Front_Zoom
    Your price for this item is $49.99
  8. Ring - Wi-Fi Smart Mailbox Sensor - Black - Front_Zoom

    Ring - Wi-Fi Smart Mailbox Sensor - Black

    Color:
    Black
    Model: B08FBK3YVX
    SKU: 6448572
    Your price for this item is $29.99
  9. Ring - Motion Sensor - White - Front_Zoom

    Ring - Motion Sensor - White

    Color:
    White
    Model: 5SM1S8-WEN0
    SKU: 6322648
    Your price for this item is $24.99
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  11. Honeywell Home - Smart Room Sensor - White - Front_Zoom
    Your price for this item is $39.99
  12. C by GE - Wire-Free Motion Sensor Kit - White - Front_Zoom
    Your price for this item is $44.99
  13. Swann - Wireless Motion Alert Sensor - White - Front_Zoom

    Swann - Wireless Motion Alert Sensor - White

    Model: SWIFI-MOTION-GL
    SKU: 6494952

    Not Yet Reviewed

    Your price for this item is $24.99
    Save $3
    The previous price was $27.99
  14. Ring - Alarm Motion Detector (2nd Gen) (2-Pack) - White - Front_Zoom
    Your price for this item is $59.99
  15. Swann - Wireless Motion Alert Sensor (2-pack) - White - Front_Zoom

    Swann - Wireless Motion Alert Sensor (2-pack) - White

    Model: SWIFI-MOTIONPK2-GL
    SKU: 6494957

    Not Yet Reviewed

    Your price for this item is $49.99
    Save $5
    The previous price was $54.99
  16. WiZ - Indoor Motion Sensor - Front_Zoom
    Your price for this item is $24.99
  17. Eve - Motion Wireless Sensor - White - Front_Zoom
    Your price for this item is $49.99
  18. ADT - Motion Detectors for Home Security - Front_Zoom
    Your price for this item is $24.99
  19. Aeotec - Motion Sensor - Front_Zoom
    Your price for this item is $49.99
  20. FEIT ELECTRIC - Wi-Fi Smart Water Sensor - White - Front_Zoom

    New!FEIT ELECTRIC - Wi-Fi Smart Water Sensor - White

    Model: H2O/WIFI
    SKU: 6507994

    Not Yet Reviewed

    Your price for this item is $23.99
  21. FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White - Front_Zoom

    New!FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White

    Model: MOT/PIR/WIFI/BAT
    SKU: 6507998

    Not Yet Reviewed

    Your price for this item is $24.99
  22. FEIT ELECTRIC - Battery Powered Wi-Fi Smart Window Sensor - White - Front_Zoom

    New!FEIT ELECTRIC - Battery Powered Wi-Fi Smart Window Sensor - White

    Model: MOT/DOOR/WIFI/BAT
    SKU: 6507997

    Not Yet Reviewed

    Your price for this item is $15.99

Motion sensors and detectors.

Find the best motion detector for your needs.

Motion sensor alarms serve as the backbone of many security systems, providing the first line of prevention against break-ins by detecting when intruders are in or around your home or office. Many motion sensors have options to send alerts, turn on detector lights or trigger integrated security cameras to record the event. Some of the more sophisticated units can perform all three actions at once. Motion-sensing lights can also be ideal for providing illumination where you need it for safety. For instance, you can place a motion-detecting light where it will automatically come on each night when you take out the trash.

You can use motion-sensing devices to alert you when your children or pets enter a restricted area like a basement under construction or your tool room. Additionally, since many of the available motion sensors can be programmed to turn on automatically at dusk and then off at dawn, it is possible to give your house the appearance of being actively inhabited while your family is on vacation.

Smart motion detectors.

A smart display will allow you to control many types of smart devices inside your house and out. You can customize your smart lighting, as well as indoor and outdoor motion detection sensors and lights, to work the way you want as part of your home monitoring system. Other popular home security components include window and door alarms, smart locks, and video doorbells, which feature a wireless doorbell camera. The video doorbell shows you instantly who is at the door, and even lets you talk to visitors from wherever you are.

Types of motion-sensing alarms.

Motion detection can be either active or passive, using one or multiple technologies to discern movement. Active motion detectors send out pulses and waves that reflect back with information relating to changes or movement in the covered grid. But the most popular motion detection for home use consists of passive infrared motion detectors that identify heat emanating from animals and humans to identify potential threats. Passive sensors tend to be more energy-friendly since they only come on when movement is detected.

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